# class Person():
    
#     name='zhangs'

#     def sayHello(self):
#         print('hello',self.name)


# p1 = Person()
# p1.sayHello()
# print(p1.name)


class Dog():

    def __init__(self,name,age):
        self.name = name
        self.aeg = age

    def get_name(self):
       

    def set_name(self,name):
         self.name =name
         
    def sey_Hello(self):
        print('say_hello...')



d = Dog('大黄',12)
d.sey_Hello()
